Senior Backend Engineer - Subscriptions

Why Join Socure?At Socure, we are pioneering the identity trust framework for the digital economy, ensuring real-time verification of legitimate identities while preventing fraud at its inception. Our mission is ambitious, the challenges are intricate, and the results resonate with businesses, governments, and millions globally every day.We seek individuals who thrive on responsibility and are eager to tackle complex challenges. If you possess a fast-paced mindset, critical thinking skills, ownership mentality, and a passion for precise customer problem-solving, you may be the right fit. If you prefer predictability or a limited scope of work, this may not be your ideal environment. If you're ready to help shape the future of identity with a team that holds itself to high standards, we encourage you to continue reading.As a Senior Frontend Engineer on our RiskOs team, you will be instrumental in guiding the technical vision, structure, and implementation of our cutting-edge risk intelligence platform. You'll design and build sophisticated, efficient, and dependable user interfaces, influence engineering culture, mentor aspiring technical leaders, and ensure alignment across product and engineering teams.This role is high-impact and designed for an engineer who excels at addressing complex challenges, defining architectural strategies, and delivering scalable customer-facing solutions. You'll collaborate closely with executives, cross-functional leaders, and distributed engineering teams to shape the future of Socure's frontend ecosystem.Your Responsibilities:Lead the definition and evolution of frontend architecture, frameworks, and design systems for large-scale, mission-critical applications.Collaborate with product, design, and backend engineering teams to create long-term technical roadmaps and ensure seamless system integration.Provide mentorship and technical guidance to both senior and junior engineers, helping them develop into stronger contributors and leaders.Promote engineering best practices across teams, including testing strategies, CI/CD, performance optimization, and accessibility standards.Proactively identify and resolve systemic issues by implementing scalable solutions.

Join Socure as a Staff Backend Engineer focusing on RiskOS, where you'll be at the forefront of developing cutting-edge backend solutions that drive our risk management platform. Collaborate with cross-functional teams to enhance system scalability, reliability, and performance, shaping the future of identity verification.

About H:At H, we are at the forefront of superintelligence, driven by our mission to harness agentic AI. Our innovative AI agents automate intricate, multi-step tasks traditionally carried out by humans, empowering individuals to reach their fullest potential.We are on the lookout for exceptional AI professionals who prioritize building responsibly and safely while pushing the boundaries of agentic technology. Our culture thrives on openness, continuous learning, and collaborative efforts, where every team member's contribution is valued.About the Team:Our Product Engineering Team plays a pivotal role in the successful deployment and operation of our Agents and Inference platforms, along with related services that support our Research department and lay the groundwork for our market-ready agentic products.Key Responsibilities:Lead the definition and execution of technical architecture, design, and strategic engineering roadmap.Design, develop, and maintain robust, high-performance, scalable systems.Mentor and inspire engineers across various teams, nurturing a culture of technical excellence.Conduct comprehensive code reviews and design evaluations to uphold quality and security standards.Collaborate closely with Research, Engineering, and other stakeholders to deliver impactful solutions.Enhance system reliability, scalability, and observability through continuous improvements.Establish and uphold engineering standards, tools, and processes.Drive innovation and proactively manage technical debt.

Join Canva's Flourish Platform as a Staff Backend Engineer where you will play a crucial role in building and enhancing our backend systems using TypeScript and Node.js. Collaborate with a talented team of engineers to design scalable and efficient backend services that power our innovative solutions.

Join Our Team!At Plum, we are revolutionizing how people save and invest. Our mission is to empower individuals to grow their wealth for life, whether they are saving for their first home or enjoying retirement. Since our inception in 2016, over 2 million users across 10 European countries have saved more than £2 billion with our innovative automation and AI technology. We've been recognized with awards from esteemed organizations like Deloitte and Finder, reflecting our commitment to excellence.We are a passionate team of over 200 Plumsters working collaboratively across Europe, and we are eager to welcome more talented individuals to help us achieve our vision.Your RoleAs a Senior Backend Engineer at Plum, you will play a crucial role in shaping our technology and product offerings. We seek engineers who are not only technically adept but also understand the importance of delivering outstanding products to our customers.

Join Our Team as a Backend Engineer in LondonNote: Positions are located in London, UK — relocation and visa support available.Unleash Your PotentialAt Trade Republic, we are Europe's leading savings platform, operating across 18 nations and trusted by over 10 million customers managing more than €150 billion in assets. Our ambition extends beyond this; we are on a mission to enable everyone to build wealth through easy, safe, and free access to financial systems.As a Backend Engineer, you will collaborate with a talented team and cutting-edge technology, contributing to a future that positively impacts millions.Your ResponsibilitiesDevelop and test innovative services and products using modern JVM tools, including Kotlin, Spring, Vert.x, Hibernate, or jOOQ.Design robust cloud services emphasizing high availability, low latency, and scalability on AWS.Implement automated software delivery pipelines utilizing GitHub Actions, container-based CI/CD, and Kubernetes orchestration.What We Seek in YouA minimum of 5 years of experience in software engineering, ideally within the JVM ecosystem.We welcome candidates from mid to senior levels; whether you're looking for increased ownership or have extensive experience leading complex systems, we want to hear from you.Proven track record of developing and deploying scalable features in a service-oriented architecture.Strong commitment to delivering reliable and maintainable software through iterative development and continuous delivery.Experience in building foundational platform services that enhance product development is a plus.Ability to thrive in a flexible hybrid work environment, with 2-3 days per week in the office.Why You Should Apply NowOur culture celebrates ownership, excellence, and high energy. We are dedicated to closing the pension gap and democratizing wealth in Europe. If this resonates with you, we encourage you to reach out!

About Our TeamJoin our innovative AI Platform team at realtimeboardglobal, where we are at the forefront of Miro’s AI-powered product vision. We are dedicated to developing the internal platform, tools, and APIs that empower Miro’s product teams to integrate and scale AI applications seamlessly. Our mission is to create a robust and adaptable technical foundation for AI innovation, enabling our teams to work efficiently, innovate responsibly, and deliver exceptional AI features to our users.Your RoleAs a Senior Backend Engineer within our AI Platform team, you will play a pivotal role in constructing and enhancing the core infrastructure that powers AI across Miro. You will establish the technical groundwork for how we develop, deploy, and manage AI/ML capabilities, serving tens of millions of users as we transition into an increasingly intelligent product. You will design internal tools that allow teams to experiment with and release AI features swiftly and responsibly, as well as manage data pipelines for AI applications. This is a unique opportunity to influence how AI is developed and embraced company-wide.

At Spotify, we are on a mission to revolutionize the way creators and listeners engage with long-form storytelling through our Audiobooks initiative. Our objective is to create a seamless ecosystem for audiobook content, facilitating smooth transfers from publishers to listeners. This includes building the robust systems necessary for content ingestion, processing, and efficient delivery across our rapidly expanding global catalog. We are seeking a talented Senior Backend Engineer to join a dynamic and impactful team within the Audiobooks Pipeline sector. This team's primary responsibility is to design and scale systems that handle the ingestion, processing, and transformation of audiobook and eBook content, metadata, and royalties, ensuring that listeners receive the right content with utmost efficiency and quality. While this role encompasses full-stack responsibilities, the emphasis will be on backend and data-centric development. We are looking for an individual who thrives in uncertain environments, is passionate about learning, and is excited to tackle complex challenges across the tech stack.

Join Aircall, a revolutionary unicorn in the AI-powered customer communications sphere, trusted by over 22,000 companies globally to enhance revenue, expedite issue resolution, and empower customer-facing teams. We are transforming the landscape of customer communications by integrating voice, SMS, WhatsApp, and AI into a unified workspace.Our growth is driven by a straightforward principle: to enable teams to work smarter, not harder. Our AI Voice Agent automates routine calls, while AI Assist simplifies post-call tasks, and AI Assist Pro provides real-time insights, allowing individuals to excel in their roles. This synergy results in increased revenue, quicker resolutions, and scalable teams.Headquartered in Paris, with a solid presence in North America anchored in Seattle, Aircall also has teams in vibrant cities such as Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product is beloved by customers, and we are rapidly scaling, supported by top-tier investors and continuous AI advancements across multiple product lines.At Aircall, you'll become part of a dynamic company. We are ambitious, focused on product development, and execution-oriented, with a clear impact, swift decision-making, and genuine growth opportunities.Our Work Culture at Aircall: We prioritize customer satisfaction, leverage data for decision-making, and are dedicated to delivering significant outcomes. We cherish ownership, continuous improvement, and thoughtful agility. If you thrive in a collaborative, fast-paced environment where trust and impact are essential, you will thrive here.Position Overview:As a Senior Backend Software Engineer, you will take charge of designing, developing, deploying, and maintaining essential features that enhance customer value on our voice platform.You will be expected to advocate for best practices, mentor team members, and contribute to the broader Engineering community as part of your daily responsibilities.Quality, excellence, and agility are at the core of our delivery process, and you will play a pivotal role in elevating these standards.Utilizing a diverse array of backend technologies tailored to specific needs, all hosted on AWS, we create resilient services that deliver added value on top of voice while fully integrating with our customers' critical business tools (CRM, Helpdesk, E-Commerce, etc.).

Join xAI as a Backend Engineer, where you will play a vital role in building robust production systems that support grok.com and our API. We are looking for a highly motivated individual with expertise in scalable infrastructure and a passion for problem-solving. Your experience with Rust or C++, along with your ability to design and maintain distributed systems, will be crucial as you contribute directly to our mission of advancing AI technologies. Strong communication skills and a commitment to excellence are essential in our collaborative environment.

TL;DRDeducta is a rapidly expanding startup catering to some of the globe's most prestigious enterprises. With strong funding, we are committed to addressing today's most significant business challenges.We are seeking a Senior Backend Engineer who will play a pivotal role in the design, development, and upkeep of our core systems.In this role, your key responsibilities will include:Creating and sustaining high-performance, low-latency APIs for enterprise-level data processing systems.Delivering exceptional code promptly. Location: London, UK. Our office is situated near London Bridge, and we prioritize in-person collaboration. Compensation: The total compensation for this position begins at £150,000. Visa Sponsorship: We are willing to sponsor a visa for the ideal candidate to join our team. What is Deducta?Deducta is a leading data intelligence platform for global corporations. We provide unparalleled clarity into mission-critical data for some of the world's largest and most intricate organizations, starting with spend data.We are at the forefront of significant business transformations. Our partners leverage Deducta to achieve impactful results at remarkable speeds.‍What is the Role?We process vast datasets containing essential enterprise information from diverse sources and formats, structuring it effectively. Our system utilizes cutting-edge LLMs to tackle this challenge with unmatched precision and at previously unimaginable scales.As a Senior Backend Engineer, you will be responsible for designing, developing, and maintaining the foundational architecture of our platform as it expands.Your contributions will include:Designing, constructing, and maintaining data ingestion and processing engines capable of supporting mission-critical operations for the largest firms globally.Developing and sustaining ultra-fast, high-volume, and well-documented APIs to facilitate these systems.Driving business growth through a blend of creativity and experimentation to enhance our product, alongside proactive problem-solving for our clients.Working closely with both technical and non-technical team members to comprehend our customers' challenges and create solutions that address them.Success in this role means:Leading development initiatives from concept to production.Consistently driving enhancements and new features. Who will be the right fit?We are in search of a technically outstanding engineer who excels in a role that offers autonomy and ownership.You might be a great fit if you possess…Strong experience in object-oriented programming within cloud environments (e.g. AWS, GCP, or Azure), with .NET experience considered a plus.Familiarity with SOLID principles, domain-driven design, and Clean Architecture methodologies.A passion for...

Why Join Socure?At Socure, we are at the forefront of establishing the identity trust infrastructure for the digital economy, ensuring the verification of 100% legitimate identities in real-time while preventing fraud before it occurs. Our mission is vast and our challenges are intricate, impacting businesses, governments, and millions of individuals worldwide every day.We seek individuals who are eager to embrace significant responsibilities. If you are someone who thrives in a fast-paced environment, thinks critically, acts with ownership, and is deeply committed to delivering precise solutions for our customers, you’ll find your place here. This is not a setting for those who prefer predictability or limited scope. If you are driven to help shape the future of identity with a team that maintains high standards, continue reading.As a Senior Frontend Engineer on our RiskOS team, you will play a crucial role in developing intuitive, high-performing, and reliable web applications that empower our users to proactively identify and mitigate risks. You will engage in every aspect of the software development lifecycle—from architectural design to implementation, testing, and production support. By leveraging modern frontend technologies and best practices, you will not only advocate for optimal solutions but also mentor fellow engineers. This role is ideal for frontend specialists who are passionate about creating design systems, enhancing user experiences, and making a considerable impact at scale.Your Key Responsibilities:Design and develop robust user interfaces based on high-fidelity designs and functional specifications of varying complexity.Collaborate closely with product managers, designers, and engineers to deliver a customer-focused product that exceeds expectations.Take ownership of features from design reviews to production deployment, ensuring high quality, usability, and performance.Develop comprehensive unit, integration, and end-to-end tests to ensure code robustness and extensive functional coverage.Translate complex technical and product challenges into manageable tasks and drive them to successful completion.

Join Duffel as a Backend Software Engineer and play a pivotal role in shaping the future of travel technology. We are seeking passionate individuals who thrive on solving complex challenges and are excited about creating scalable and efficient backend systems.

Join V7 LabsAt V7 Labs, we're revolutionizing the AI landscape by creating platforms that empower individuals to achieve peak performance with unmatched efficiency. Our goal is to convert human expertise into reliable AI, streamlining complex processes to be quicker, smarter, and more precise. We are experiencing rapid growth, supported by top investors and AI visionaries, including the creators behind Transformers and Gemini.Your RoleAs a Product Engineer, you will contribute to V7 Go, a platform designed to equip legal, finance, insurance, and accounting sectors with a customizable no-code AI agent toolkit. This tool focuses on harnessing multi-modal data to produce verifiable outputs while ensuring transparency in AI logic for accuracy and compliance.V7 Go integrates the latest models, including GPT-5, Claude 4.1, and Gemini 2.5, ensuring optimal accuracy and performance. Check out the V7 Go keynote for more insights into our innovative solutions.Team Dynamics and ImpactYou will report directly to Chris, our Engineering Manager, and collaborate within the Go Engineering team.Working alongside a dedicated team of up to 7 professionals, you will take on significant responsibilities encompassing coding, testing, planning, and analysis.You will have the autonomy to establish your own objectives, strategies, and metrics, emphasizing impactful outcomes rather than mere task completion.We value proactive engineers who take ownership of their work, demonstrating initiative in problem-solving and collaboration.Your Day-to-Day ResponsibilitiesFacilitating the application of foundational models to scale multi-modal data.Enhancing our platform to effectively manage complex multi-tenant usage patterns.Developing a comprehensive suite of APIs to support both our internal systems and customer-facing products.Delivering production-ready updates multiple times daily, collaborating closely with Product and Design teams to address customer needs.Candidate ProfileExperience in functional programming is essential. Familiarity with Elixir is advantageous, but languages such as Scala, GoLang, Node.js, Haskell, Clojure, and F# are also welcomed.Strong problem-solving skills and a proactive attitude towards challenges.

Join the Future of Identity with Socure!At Socure, we are revolutionizing the identity verification landscape, establishing a trust infrastructure that safeguards the digital economy. Our mission is to verify 100% of legitimate identities in real-time, proactively preventing fraud before it occurs. Our work addresses complex challenges, impacting businesses, governments, and millions of individuals globally every day.We seek passionate individuals ready to take on significant responsibilities. If you thrive in a fast-paced environment, possess critical thinking skills, and approach challenges with an ownership mindset, you’ll fit right in. If predictability is what you seek, this might not be the role for you. However, if you're eager to help shape the future of identity with a team that holds itself to the highest standards, keep reading.As a Senior Backend Engineer, you will be a critical player in our product-focused teams, designing and building scalable systems that have a meaningful impact. You will engage directly with customers to enhance satisfaction and drive continuous improvements across our product offerings.In this role, you will lead the design and implementation of distributed systems, take ownership of essential non-functional requirements such as scalability, security, and reliability, and mentor fellow engineers while remaining actively involved in development. Your expertise will be vital throughout the entire software development lifecycle, from architecture and implementation to testing, documentation, and production support.This position is ideal for backend engineers who are passionate about building robust systems using Golang, excel in a product-driven environment, and want to influence technology at scale.Key Responsibilities:Design, develop, test, and debug scalable backend services within distributed systems.Deliver on key non-functional requirements, including scalability, availability, performance, and security.Develop and maintain comprehensive tests (unit, integration, functional) to ensure high coverage and reliability.Contribute to and produce technical documentation for knowledge sharing and collaboration.Break down complex projects into actionable tasks and guide teams in their execution.

About UsAt Heidi, we are pioneering an AI Care Partner that assists healthcare professionals at every stage, from documentation to patient care delivery. Our mission is to enhance healthcare capacity while maintaining a deeply human touch. In just 18 months, we have reclaimed over 18 million hours for clinicians and facilitated more than 73 million patient visits. Currently, Heidi powers over two million patient interactions weekly across 116 countries in more than 110 languages.Founded by healthcare professionals, Heidi unites clinicians, engineers, designers, scientists, creatives, and mathematicians, all dedicated to enhancing the human connection central to healthcare. With nearly $100 million in funding, we are expanding our reach in the USA, UK, Canada, and Europe, collaborating with major health systems, including the NHS and Beth Israel Lahey Health, among others.We are agile in our approach, focused on what works, and poised to shape the future of healthcare. Are you ready to take on this challenge?Your RoleAs a Senior Backend Engineer, you will be instrumental in executing backend features, leveraging your deep technical understanding to meet user requirements. You will thrive in a hyper-growth startup environment, with substantial experience in building SaaS products.With a solid grasp of the challenges engineers face, you will prioritize key features and capabilities through effective design principles. Your ability to bridge technical specifics with business needs will enable you to transform high-level concepts into practical solutions.Embracing challenging scenarios, you will appreciate the dynamics of a flexible, flat-structured work environment and quickly navigate the complexities of developing AI healthcare products on an international scale. We believe that exceptional talent can emerge from diverse backgrounds; if you have a proven history of delivering technically demanding products and features, we want to hear from you.

Role overview airapps is hiring a Backend Engineer for its London Metropolitan Area team. This role focuses on designing and building scalable server-side applications that support the company’s products and services. What you will do Work closely with colleagues across different functions to develop backend systems Contribute to the architecture and implementation of server-side features Help ensure backend solutions can scale and perform reliably Location This position is based in the London Metropolitan Area.

About 9fin9fin is a cutting-edge AI platform revolutionizing the global debt markets, which represent the largest asset class exceeding $145 trillion.The landscape of debt markets is extensive, global, and essential, yet it often relies on disjointed data, PDFs, and manual processes. 9fin transforms this outdated infrastructure by providing a unified platform that consolidates proprietary credit data, in-depth analysis, and efficient workflows across international markets.Currently, 9fin empowers over 300 prestigious institutions worldwide, including leading banks, asset managers, private equity firms, law firms, and consulting advisors. The company is experiencing rapid growth, particularly in the US, with exceptional retention rates driven by robust workflow adoption.We are at a pivotal moment. With a validated product-market fit and strong global demand, 9fin is propelling towards becoming the definitive platform for debt markets globally.What You'll Work OnAs a Senior Backend Engineer on our Structured Credit team, you will contribute to the development of our market-leading CLO product and assist in the launch of a new vertical.Our team is dedicated to making a significant impact, leveraging technology to create value for the business. While we have overarching business goals, we enjoy the autonomy to define our team objectives and determine our success metrics. We uphold accountability and proactive behaviors such as ownership.Lead projects within a cross-functional team by defining and designing systems, building proof of concepts, and delivering new service functionalities—including APIs, data processing, and automation—while collaborating with Product and Clients.Engage in backend development and engineering primarily on the services and web applications hosted on the 9fin platform.Play a crucial role within project teams as a senior individual contributor, conducting code reviews, mentoring fellow developers, and participating in early research and experimentation with new technologies to provide insights for new features and products.Continuously enhance the 9fin codebase by seizing opportunities to automate, refactor, and document processes when it has the most significant impact.Work across diverse web platforms involving complex financial data modeling, intricate access control logic, environmental data capture, integration of ML/AI prediction services, and data visualization.

Your Mission As a Senior Backend Engineer within our Commercial Technology team, you will play a pivotal role in shaping On's digital ecosystem. You'll be responsible for designing, developing, and scaling the essential services that drive our global e-commerce platform, B2B partner portals, and retail experiences. Your contributions will significantly influence how we present product information, facilitate the checkout process, and enhance the end-to-end e-commerce user experience for our customers and partners, ensuring a seamless and premium interaction that bolsters our commercial success. Your Responsibilities Design, develop, and maintain robust and scalable backend services utilizing our modern technology stack, focusing primarily on NestJS, TypeScript, and GraphQL. Take ownership of key components within our Commercial Technology team, ensuring performance, reliability, and alignment with the needs of diverse client applications (web, mobile, and third-party integrations). Collaborate closely with frontend engineers, product managers, and other stakeholders to deliver comprehensive features. Write clean, maintainable, and well-tested code, and actively contribute to a culture of high quality and continuous improvement through code reviews and pair programming. Deploy and manage your services in a cloud-native environment on Google Cloud Platform (GCP) using Kubernetes and Docker. Engage with and contribute to our distributed systems landscape, helping to create resilient systems that can scale effectively. Your Qualifications Strong background in backend development with proven experience in building and delivering high-quality software. Proficiency in Node.js and TypeScript, with a deep understanding of modern backend frameworks. Hands-on experience with NestJS will be an advantage. Solid experience in designing, building, and consuming GraphQL APIs. Strong knowledge of relational databases (e.g., PostgreSQL) and data modeling practices. Hands-on experience with cloud platforms (GCP preferred) and container technologies (Docker, Kubernetes). You are a collaborative team player with excellent communication skills, comfortable working in an agile environment. Bonus Points for Experience with: ORM tools like MikroORM